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Cheap flights from Portland to London from $254

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to London departing on 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:45 pm - 2:10 pm
PDX
-
STN
15h 25m
1 stop
Multiple Airlines Logo
7:15 am - 6:00 pm
STN
-
PDX
17h 45m
1 stop
$837Multiple Airlines
Tue, Mar 17 - Sun, Mar 22
Multiple Airlines Logo
1:05 pm - 11:40 pm
PDX
-
STN
26h 35m
2 stops
Multiple Airlines Logo
9:10 am - 11:10 am
STN
-
PDX
34h 00m
2 stops
$888Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
9:50 am - 8:05 pm
PDX
-
STN
26h 15m
3 stops
Multiple Airlines Logo
6:30 am - 9:15 am
STN
-
PDX
33h 45m
3 stops
$933Multiple Airlines
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
2:45 pm - 11:10 pm
PDX
-
STN
24h 25m
2 stops
Multiple Airlines Logo
8:35 am - 6:00 pm
STN
-
PDX
16h 25m
2 stops
$1,008Multiple Airlines
Sat, Mar 7 - Fri, Mar 13
Multiple Airlines Logo
3:52 pm - 2:10 pm
PDX
-
STN
39h 18m
2 stops
Multiple Airlines Logo
7:15 am - 6:00 pm
STN
-
PDX
17h 45m
1 stop
$1,067Multiple Airlines
Mon, Mar 16 - Wed, Mar 25
Multiple Airlines Logo
2:50 pm - 10:15 pm
PDX
-
STN
24h 25m
2 stops
Multiple Airlines Logo
6:15 am - 8:32 pm
STN
-
PDX
22h 17m
2 stops
$1,105Multiple Airlines
Wed, Mar 18 - Wed, Apr 15
Multiple Airlines Logo
2:50 pm - 10:15 pm
PDX
-
STN
24h 25m
2 stops
Multiple Airlines Logo
6:40 am - 9:38 pm
STN
-
PDX
21h 58m
2 stops
$1,109Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
Multiple Airlines Logo
2:50 pm - 10:15 pm
PDX
-
STN
24h 25m
2 stops
Multiple Airlines Logo
6:15 am - 8:32 pm
STN
-
PDX
22h 17m
2 stops
$1,125Multiple Airlines
Wed, Mar 18 - Wed, Apr 15
Multiple Airlines Logo
1:39 pm - 10:10 pm
PDX
-
STN
24h 31m
2 stops
Multiple Airlines Logo
6:15 am - 8:32 pm
STN
-
PDX
22h 17m
2 stops
$1,220Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
1:05 pm - 2:35 pm
PDX
-
STN
17h 30m
2 stops
Multiple Airlines Logo
8:30 am - 6:00 pm
STN
-
PDX
17h 30m
2 stops
$1,232Multiple Airlines
Wed, Apr 8 - Wed, Apr 22

Turkish Airlines flights from Portland to London Stansted Airport

Our best Turkish Airlines deals on Portland to London Stansted Airport flight tickets
Turkish Airlines
Apr 17
PDX1:39 pmPortland
36h 16m
2 stops
STN9:55 amLondon Stansted
Apr 27
STN10:50 amLondon Stansted
35h 40m
2 stops
PDX2:30 pmPortland
$1,524
Turkish Airlines
Apr 20
PDX1:39 pmPortland
24h 31m
2 stops
STN10:10 pmLondon Stansted
Apr 27
STN10:50 amLondon Stansted
35h 40m
2 stops
PDX2:30 pmPortland
$1,544
Turkish Airlines
Mar 30
PDX1:39 pmPortland
36h 16m
2 stops
STN9:55 amLondon Stansted
Jun 4
STN5:45 pmLondon Stansted
35h 00m
2 stops
PDX8:45 pmPortland
$1,584

momondo Fare Finder

 
Customize your flight search to find flights from Portland to London Stansted Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Portland to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLondon

PDX - STN

PDXSTN

Portland

Tue 3/17

3:45 pm-2:10 pm

1 stop15h 25m

London Stansted

Sun 3/22

7:15 am-6:00 pm

1 stop17h 45m

$837

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 4/8

1:05 pm-11:40 pm

2 stops26h 35m

London Stansted

Wed 4/15

9:10 am-11:10 am

2 stops34h 00m

$888

PortlandLondon

PDX - STN

PDXSTN

Portland

Thu 3/5

9:50 am-8:05 pm

3 stops26h 15m

London Stansted

Thu 3/12

6:30 am-9:15 am

3 stops33h 45m

$933

PortlandLondon

PDX - STN

PDXSTN

Portland

Sat 3/7

2:45 pm-11:10 pm

2 stops24h 25m

London Stansted

Fri 3/13

8:35 am-6:00 pm

2 stops16h 25m

$1,008

PortlandLondon

PDX - STN

PDXSTN

Portland

Mon 3/16

3:52 pm-2:10 pm

2 stops39h 18m

London Stansted

Wed 3/25

7:15 am-6:00 pm

1 stop17h 45m

$1,067

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 3/18

2:50 pm-10:15 pm

2 stops24h 25m

London Stansted

Wed 4/15

6:15 am-8:32 pm

2 stops22h 17m

$1,105

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 3/18

2:50 pm-10:15 pm

2 stops24h 25m

London Stansted

Wed 3/25

6:40 am-9:38 pm

2 stops21h 58m

$1,109

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 3/18

2:50 pm-10:15 pm

2 stops24h 25m

London Stansted

Wed 4/15

6:15 am-8:32 pm

2 stops22h 17m

$1,125

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 4/1

1:39 pm-10:10 pm

2 stops24h 31m

London Stansted

Wed 4/8

6:15 am-8:32 pm

2 stops22h 17m

$1,220

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 4/8

1:05 pm-2:35 pm

2 stops17h 30m

London Stansted

Wed 4/22

8:30 am-6:00 pm

2 stops17h 30m

$1,232

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Portland to London Stansted Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to London Stansted Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to London Stansted Airport (PDX to STN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to London Stansted Airport

Fastest flight time

15h 25m

Direct flights

None
The fastest flight from Portland to London Stansted Airport takes 15h 25m
There are no direct flights from Portland to London Stansted Airport. There are no popular flight routes from Portland to London Stansted Airport.
Search flight deals

  • How far is Portland to London Stansted by plane?

    The straight-line distance from Portland to London Stansted is 4898.6 mi. Typically, this will take 15h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to London Stansted Airport?

    Prices for flights from Portland Airport to London Stansted Airport are updated daily.

  • How old do you have to be to fly from Portland Airport to London Stansted Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to London Stansted Airport.

  • What documentation or ID do you need to fly to London Stansted Airport?

    The travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Portland to London Stansted Airport?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Portland from London Stansted Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Portland to London Stansted Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Luton
Milton Keynes
Dover
Slough
Guildford
Wembley
Crawley
Dartford
Hayes
Brentwood
Watford
Cobham
Folkestone
Romford
Stansted
Harrow
Croydon
Richmond

Why use momondo?

Why should I use momondo to find a flight deal from Portland to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to London for you.

Can I find flights from Portland to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to London?

momondo provides multiple filters to help you find the best flight to London from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Stansted Airport trip

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